The upside down screen-I presume you are referring to HBC-is just a prank by the Homebrew folks who do not approve of piracy. Often, just reinstalling HBC will flip the image back. If not, please re-post. A brick is a black screen no power-OK? You don't have a brick unless you deleted something you should not.

EDIT-wow, you folks are either really fast, or my connection is really slow-look at that three posts in the interim before mine even showed up.